Britney Spears and fiancé Sam Asghari hit back at Kevin Federline's claims over Britney and her two boys, both of which she shares with Kevin.READ: Britney Spears: Singer responds to ex Kevin's 'hurtful' comments about her sons Obtained by MailOnline, Kevin revealed that Britney's teenage sons have distanced themselves from the pop star. In the interview, Kevin says that the boys, named Preston and Jayden, made the decision not to attend their mother's star-studded wedding earlier this year.WATCH: Britney Spears Models Shorts And Knee-high Boots Inside Palatial BathroomBoth Britney and her fiancé responded to Kevin on their respective Instagram accounts.